Machine



(No Model.)

3 Sheets-Sheet 1. D. J. LATTIMORE. WOOD SANDING AND POLISHING MACHINE.

No. 590,665. Patented Sept. 28,1897.

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3 Sheets-Sheet 2 (No Model.)

D. J. 'LATTIMORE. WOOD SANDING AND POLISHING MACHINE.

No. 590,665. Patented Sap-13.28, 18-97.

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(No Model.) .3 Sheets-Sheet 3.

D. J. LATTIMORE. WOOD SANDING AND POLISHING MACHINE.

No. 590,665.. Patented Sept. 28, 1897.

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UNITED STATES DANIEL J. LATTIMORE, or sr. Louis, MISSOURI, ASSIGNOR orONE-HALF I PATENT Orricn.

TO CLARENCE M. LATTIMORE, OF SAME PLACE.

WOOD SANDING AND POLISHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 590,66 5, datedSeptember 28, 1897.

Application filed October 26,1896. Serial in. 610,141. (1101110161.)

To 60% whom it may concern.-

Be it known that I, DANIEL J. LATTIMORE, a citizen of the United States,residing at St. Louis, in the tate of Missouri, have invented certainnew and useful Improvements in WVood Sanding and Polishing Machines, ofwhich the following is a full, clear, and exact description, referencebeing had to the accompanying drawings, forming a part hereof.

My invention has relation to improvements in wood sanding and polishingmachines; and it consists in the novel arrangement and combination ofparts more fully set forth in the specification and pointed out in theclaims.

In the drawings, Figure 1 is a side elevation of the machine. Fig. 2 isa top plan view thereof. Fig. 3 is a detail on the section-line 00 5c ofFig. 1. Fig. 4- is a sectional longitudinal detail of a cylinder foroperating on beaded moldings. Fig. 5 is a longitudinal sectional detailof a cylinder made up of sections. Fig. 6 is a section on line 3 y ofFig. 7. Fig. 7 is a detail plan showing the manner of constructing thepolishing-cylinder. Fig. 8 is a longitudinal sectional detail showingthe manner of constructing the peripheral sections of thepolishing-cylindenthe section being taken in a plane at right angles tothat illustrating Fig. 6; and Fig. 9 is a detail elevation of theresin-cleaning device.

The object of my invention is to construct a combined wood sanding andpolishing machine adapted to operate both on plane or beaded surfaces,such as moldings and the like, the present device being adapted tothoroughly sand and polish moldings and similar ornamental woodworkwithout in the least disturbing the sharpness of the edges of themembers of such molding, the sanding bodies or cylinders employed forthe purpose reaching any and every portion of the surface of suchmoldings, positively taking off or removing any and every unevenness orridge generally left by the planer, especially where the latter has tocontend with knots, eXcrescences, and unnatural local growths in thewood during the planing operation. The present machine is provided withsanding bodies or cylinders which constantly present a cutting orsanding surface to the material suring a positive uniformity in thecharacter of its product.-

In detail the invention may be described as follows:

Referring to the drawings, 1 represents a frame at one end of which ismounted in suitable bearin gs a drive-shaft 2, having, respectively,tight and loose pulleys 3 and 4 at one 'of its outer projecting ends,the said pulleys being adapted to be driven from any suitable source ofpower. (Not shown.) Carried adja- I cent to the opposite end of thedrive-shaft is a drive-pulley 5, from which passes a belt 5 to theterminal pulley 6 of a sanding-cylinder 7, adjustable to and from thebed-plate of the machine-frame. The manner of effecting the adjustmentisas follows: The shaft of said sanding-cylinder is mounted in bearingseach provided with dovetailed grooves adapted to loosely receive thecorresponding dovetailed tongues 8, forming part of one of themembers'of the vertically-disposed angle-bars 9, depending from theframe of the machine.

The lower portion of the bearing is provided with a screw 10, held adjustably in any predetermined position by the nut 11, passed over thesame and driven firmly against the bearing, the lower end of said screwbeing pivotally connected to one end of a link 1] whose opposite end ispivotally secured by a pin 12 to the lateral surface of a worm-gear 13,carried at opposite ends of a transverselydisposed shaft 14, theworm-gear on one side of the machine cooperating with a worm-pinion 15,carried at the lower end of an "operating rod or shaft 16, mounted insuitable bearings on one side of the frame. The wormgear on the oppositeside of the machine can of course take the form of a simple disk. Theupper end of said shaft or operating-rod is provided with a hand-wheel17, within easy reach of the operator. Upon the turning of thehand-wheel in proper direction the wormgear 13 will be turned, therebyforcing the link 11 in proper direction and thus properly adjusting thebearin gs in which the sandingcylinder is mounted, the said bearingssliding along the dovetailed tongues forming part of the angle-bars 9.

As will presently appear, the present device is provided with twosanding-cylinders, each capable of adjustment in the manner indicated.superposed above the sanding-cylinder (whose periphery, by the way,projects through an opening of the bed-plate and above the plane of thelatter a distance depending on the depth of the wood surface to besanded) is a presser-roller l8, adjustable in a well-known manner bymounting the shaft thereof in blocks 19, adapted to embrace and slidealong the guide-tongues 20, forming a part of the standards 21 betweenwhich the said roller is mounted, the said bearing-blocks being adjustedby the screws 22, turned in proper direction by the hand-wheels Securedto the end of the drive-shaft 2, adjacent to the drive-pulley 5, is asmall pulley 21L, from which passes a belt 25 over a larger pulley26,carried on the same side of the machine at one end of the rear bottomshaft 27, the latter having secured at its end, adjacent to the pulley26, a sprocket-wheel 28, from which passes a sprocket-chain 29 over alarger sprocket-wheel 30, carried at the end of the shaft 31 of thefeed-roller 32, the latterbeing adjustably mounted in a manner similarto the presser-roller l8.

Carried by the shaft 31 of the feed-roller, between the frame an d thesprocket-wheel 30, is a smaller sprocket-wheel 33, from which passesrearwardly a chain 34:, over a similar sprocket-wheel 35, carried at theadjacent outer end of the rear feed-roller 36, the shaft 37 of which ismounted adjust-ably in the identical manner described in connection withthe rollers 18 and 32.

Loosely mounted at one end of an intermediate shaft 38, locatedsubstantially on a line with the shafts 2 and 27, is a pulley 39, overwhich passes a cross-belt 40, the outer surface of that lap of thelatter which passes over the pulley 39 frictionally contacting with thelower lap of the belt 5, wherebyproper rotation is communicated to thepulley 39, the motion of the latter being communicated through the belt4-0 to the rear sanding-cylinder 7 over the terminal pulley 41 of whichthe belt 40 passes.

Cooperating with the sanding-cylinder 7 is a presser-roller 42, mountedadjustably in a manner indicated in connection with the rollers 36 and32 and roller 18. The sandingcylinder 7' is adjustable in precisely thesame manner as is the roller 7.

Carried by the shaft 27 of the pulley 2G and at the end opposite that towhich the sprocket-wheel 28 is secured is a small pulley 43, from whichpasses upwardlya belt 44 over the terminal pulley $5 of the shaft of thepolishing-rollertfi, the latterbeingbuilt up, preferably, of a series ofleather strips, by which the polishing or smoothing of the wood iseffected upon the completion of the sanding operation.

It may be remarked in passing that the grain of the sandstone cylinder 7is finer than that of the cylinder 7, thereby subjecting the wood firstto the action of a coarsegrained sandstone, then to a finer-grainedsandstone, and, finally, to the polishingperiphery of the leather orequivalent cylinder.

As a substitute for the sandstone cylinders corundum cylinders maybeemployed.

The preferred manner of constructing the polishing-roller is bestillustrated in Figs. (3, 7, and S. A strip of wood or metal 47, having aterminal-deflected end as, is first taken, 011 which is laid the broadside of a strip of leather 4%) of sufficient width to projectperipherally beyond the wood or metal strip, then a second strip 50, ofmetal, wood, or equivalent material,.with its end abutting against theinner surface of the overlapping deflected end 48. A screw 51 securesthe parts in place, thus forming one section of the peripheral surfaceof such polishing-roller. A number of such sections combined are thendisposed with their opposite ends laid along the innersurface of anannular metallic band 52,'when there is inserted at each end into thecircular opening thus formed between the inner edges of the series ofsections thus assembled the circular inwa-rdly-projecting ledge 53,forming an integral part of the terminal circular plate or disk 51L. Theshaft 55 of the polishing-roller is then passed through the centralopenings of the said terminal or clamping plates 5%, the parts beingmade secure by the nuts 56, passed over the shaft. The opposite ends ofthe sections of the polishing-surface of the roller are thus includedbetween the band 52 on the one side and the adjacent surface of thecircular ledge 53 of the clamping-plate on the other hand.

To keep the peripheral surfaces of the sanding-cylinders free fromsawdust, dirt, &c., I provide a suitable brush 57, mounted between theends of the terminal arms of a yoke 58, mounted in suitable slots orreceptacles 59, formed in the frame of the machine, the position of theyoke being adapted to be adjusted relatively to the sanding-cylinder inproportion to the degree that the brushes 57 wear away, suitableretaining-bolts 00 being adapted to bear against the arms of said yokeand hold the latter in position after being once adjusted.

hen a beaded molding is sanded and polished, a sanding-cylinder ofcorresponding peripheral contour, conforming to the 0011- tour of themolding, is employed, as seen in Fig. 4. Where it is inconvenient tosecure a single piece of sandstone from which to construct the cylinder,a series of disks 61 can be mounted side by side along a suitable shaft,as best seen in Fig. 5, the disks being secured together in anymechanical manner.

To remove accumulations of resin or the likefrom the peripheral surfacesof sandingcylinders operating on plane surfaces' and for truing suchperiphery, I employ adevice such as illustrated in detail in Fig. 9, thesaid device, however, being old and no claim being made thereto in thepresent application. Carried by the shaft 38 is a small terminal pulley62, from which passes a belt 63 to a cor responding terminal pulley 64,carried by one end of a reverse screw-shaft 65, projecting from the sideof the frame, there being located adjacent to the pulley 64 a secondpulley 66, from which passes a belt 67 over a pulley 68 at thecorresponding end of a second reverse screw-shaft (39. Over each reversescrew-shaft 65 or 69 is adapted to be reciprocated an arm or carriage70, the said arm having cut therein a dovetail groove adapted to embracea correspondingly-dovetailed track or rail 71, located adjacent to andparallel with the shafts of the sanding-cylinders 7 and 7.' Each arm orcarriage 70 is provided with a headed bolt 7 2, by which may be clampedin any position on the arm 70 a plate 73, through a slot (not shown) ofwhich the'bolt passes, the adjustment of said plate to and from theperiphery of the sanding-cylinder being effected by a lever-operatedscrew 7 41, passing through the downwardly-deflected arm of the plate 73and bearing with its inner end against the edge of the adjacent end ofthe arm 70, adjacent to the juncture of said arm with its loopedextension 70, by,

which the reverse screw-shaft is loosely embraced. The adjustable plate7 3 is provided with a vertical wall 76, to the inner tapering end ofwhich is pivotally secured a lug 77, projecting from the periphery ofone end of an oscillating tube 78, the opposite end of said tube beingguided and adjustably secured to any angle along the outer curved slot79 of said wall by the headed screw 80, passed through said slot andprojecting laterally through the slot from the outer projecting lug 82,carried by the periphery of the oscillating tube near the outer endthereof. Through the tube 78 passes the spindle 83 of a resin-cleaningrotating steel bevel-disk 84, the base of which, in its reciprocationwith the carriage 70 along the rail, is adapted to clean the peripheralsurface of the revolving sanding-cylinder of any accumulations ofresinous matter and keep the said surface true.

As the peripheral surface of the sandingcylinder wears away it isapparent that by means of the screw 7 4 the resin-cleanin g roller ordisk 84 can be adjusted toward the sanding-cylinder by a simple turn ofthe said screw 7 4 in proper direction. At the same time the angle ofthe tube in which the spindle of the resin-cleaning disk rotates can beproperly determined. 7

Both sanding-cylinders are provided with resin-cleaning devices.

Having described my invention, what I claim is- 1. In a wood-sandingmachine, a suitable frame, a series of mineral sanding-cylinders ofprogressively-increasing fineness of grain mounted on said frame, apolishing device adapted to operate on the wood at the termination ofthe sanding operation, means for actuating the sanding-cylinders andpolishing device, a presser-roller located on the frame in position tocooperate with each sandingcylinder, feeding devices in connection withthe sanding-cylinders and polishing device, means for adjusting therelative positions of the cylinders and presser-rollers in proportion asthe sanding-surfaces of the cylinders wear away, and suitable devicesfor cleansing the peripheries of the cylinders of foreign accumulations,substantially as set forth.

2. In a Wood sanding and polishing machine, a suitable revolvingsandstone sanding-cylinder, a brush for removing the dirt and sawdustparticles from the periphery thereof, and means for removing theresinous accumulations from the surface of said cylinder, substantiallyas set forth. 1

3. In a wood sanding and polishing machine, a polishing-rollercomprising a series of sections built up of alternate strips of metaland leather secured together, a band encirclingthe ends of the sectionswhen assembled, a terminal clamping plate or disk having a circularoffset or ledge adapted to be inserted into the circular opening formedbetween the edges of the assembled sections, a shaft passed through theclamping-plates, and a bindingnut carried at each end of the shaft andadapted to be firmly forced against the outer surfaces of the clam ping-plates, substantially as set forth.

4. In a wood sanding and polishing machine, a suitable sanding-cylinder,a frame in which thesame is mounted, a slot or receptacle formed in theframe adjacent to the periphery of the cylinder, a yoke slidin'glymounted in said receptacle, arms forming a part of said yoke, a brushmounted between the ends of said arms and adapted to press against theperiphery of the cylinder, and bolts for securing the yoke in placeafter the latter has once been adjusted, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses;

DANIEL J'. LATTIMORE.

IVitnesses:

ALFRED A. MATHEY, EMIL STAREK.

IIO

